Fountain-pen.



PATENTBD FEB. 3, 1903.

H. W. STONE.

FOUNTAIN PEN. APPLIoATIol FILED APE. 24, 1901.

im MODEL.

r llnlln UNTTED STATES PATENT OFFTCE.

HARRY W'. STONE, OF BROOKLYN, NEW YORK, ASSIGNOR TO ARTHUR A.

WATERMAN, OF CAMBRIDGE, MASSACHUSETTS, AND ADOLPII ERLE- BACH, OF BOSTON, MASSACHUSETTS.

FOUNTAIN-PEN.

SPECIFICATION forming' part of' Letters Patent N o. 719,529, dated February 3, 1903.

Application tiled April 24. 1901. Serial No. 57,190. (No model.)

T all whom, zit may concern: as Will hereinafter appear, my sac isintended go Be it known that I, HARRY W. STONE, a citito be manipulated by twisting rather than by zen of the United States, residing at Brooklyn, stripping the same longitudinally. in the county of Kings and State of New York, My invention comprehends providing the have invented an Improvement in Fountainsac at or to a point well along its length with Pens, of which the following description, in an inclosing holder that is attached to the connection with the accompanying drawings, loose end of' the sac or to the section carrying is a specification, like characters on the drawthe same, so that rotation of the said holder ings representing like parts. will cause similar rotation of' the said sac end.

1o My invention relates to fountain-pens of The closed end of the sac protrudes beyond the type wherein the ink is contained in a this holder sufficiently to enable it to be 6o ieXible or soft-rubber reservoir, commonly seized between the fingers and turned or known as a sac This sac is usually contwisted relative to the holder and lower end tained within a closed protecting-barrel that of the sac. By thus twisting the sac the air 15 is separable from the pen-carryin g or finger is excluded quite as effectively as by stripping section at a point near the lower delivery end the sac lengthwise, yet the twisting is done 6 5 of the sac, thus giving access to the sac for wholly by the fingers engaging the upper end its entire length to permit of its removal of the sac and the end of the holder, thereby whenever necessary. Pens of this conleaving the pen for substantially its entire zo struction are commonly filled by removing length free for insertion in any ink-well, howthe outer inclosing barrel, flattening the sac ever deep or however low the ink-level. This 7o between the fingers, commencing at its upper holder may be variously constructed and arclosed end and working gradually down to ranged, as will be hereinafter set forth. its delivery end, thereby excluding all air In the drawings, Figure 1, in longitudinal z5 therefrom, immersing the end of the pen in section, partial elevation, illustrates a pen an ink-well, and then releasing the sac, its made in accordance with one form of my inexpansion or resumption of normal shape actvention; Fig. 2, a longitudinal detail showing ing to draw the ink from the well into and to the manner of applying the sac and its holder fill the sac. An objection to this mode of' Fig. l; Fig. 3,adetail showing the endof the 3o filling has been the necessity for holding the holder Figs. l and 2, and Fig. 4 a sectional sac flattened between the fingers at its delivview showing a modified construction illus- 8o eryend,close to the pen-carrying section, durtratin g my invention. ing refilling, as the presence of the fingers so In the form of my invention illustrated by close to the end of the pen prevents dipping Figs. 1, 2, and 3 of the drawings, a is the 35 the said end into deep ink-wells, or Wells usual finger or pen section, carrying in usual wherein the ink is low, without soiling the manner a pen or nib l). The section ct has a fingers. Notwithstanding various attempts reduced or neck portion c, that receives and have been made to fill pens of this sort by holds frictionally the lower open end of the mechanical means or devices, few, if any, of usual barrel d. Beyond the neck c the sec- 4o these have, so far as I am aware, ever come tion a (see Fig. 2) is shown provided with a into commercial use, and the mode of lling second and still further reduced neck or por- 9o by stripping the sac between the fingers, as tion e, over and upon which is slipped the described, remains the generally-practiced open end of the soft-rubber or iexible resery mode among users of these pens. Voir or sac f, that'containsthe ink. A holder 45 The aim of my presentinvention is to elimisurrounds the sac at a point well along its nate the above-noted objection to this type length and sufficiently removed from the secof pen, while preserving the manipulation of tion c, said holder being here shown at g and the sac by hand, which seems to be the most connected in suitable manner with the secpractical means for compressing it, although, tion a, whereby it may restrain or causo ro tation of said section. This holder is conveniently made in the form of a split tube of aluminium or other substance (see Fig. 3) and is sprung upon the neck e and the intervening sac end, as best shown in Fig. 2. It thus serves as a means for confining the expanded open end of the sac firmly on the said neck and renders accidental displacement improbable.

To fill the sac, the closed end or closure of the barrel is removed, herein by removing the entire barrel, the holder is seized between the fingers of one hand, the protruding end of the sac is grasped between the fingers of the other hand, and the holder rotated so as to twist the sac for its entire length, and thus expel the contained ink or air. While still holding the sac thus twisted, the open or Writing end of the pen is immersed in a body of ink in a well or receptacle and the sac released and permitted to untwist or expand to its normal shape. This acts to draw the ink up from the Well into and filling the sac.

The slit in the side of the holder g enables the operator to view the inclosed sac for its entire length, and thus make sure that no twist or kink remains in the sac before replacing the cap or barrel. The slit or split holder g is also useful in giving the holder a resilience that enables it to adapt itself to variations in diameter or thickness of the sac, yet always fit and hold the latter closely. The holder also acts to support the sac when removed from the barrel and prevents it from collapsing to one side, yet leaves the end of the sac exposed for manipulation.

The holder g being rigid as to its length makes it possible to preserve an air-space h between it and the outer barrel that aids in preventing heating of the ink and consequent sweating That my invention is susceptible of various modifications is apparent from the example shown in Fig. 4, where the barrel itself is divided at 25, the portion 26 below the divisional line serving as the holder when the top portion 27 is removed.

The point at which the holder terminatesz'. e., Whether at a greater or less distance from the open `end of the sacmay be varied to suit the taste of the maker; but I prefer to extend said holder well along the sac, as to the middle thereof or beyond, while leaving a sufficient portion of the sac protruding for convenient manipulation. With an extended holder of this character the pen may be easily filled in the manner described without soiling the fingers. The length of the slit portion of the holder may be varied at will. f

Having described my invention and Without limiting myself to details, what I claim, and desire to secure by Letters Patent, is-

l. A fountain-pen containing a sac, and an exterior holder therefor located well toward the closed end of said sac and connected with the open end thereof, the closed end of said sac protruding beyond said holder suiciently to be engaged for filling.

2. A fountain-pen containing a sac and an exterior extended tubular holder therefor terminating short of the closed end of the sac, leaving said end protruding.

3. A fountain-pen containing a sac, an exterior extended tubular holding-sleeve therefor terminating short of the closed end of the sac, and a removable closure to cover the protruding end of the sac.

4. A fountain-pen containing a sac, and an exterior tubular split holder therefor, an operating end of said sac protruding beyond said holder.

5. A fountain-pen havinga pen-section provided with a reduced neck, a sac mounted on said neck, and a tubular holder also carried by said neck, but Outside said sac.

6. A fountain-pen having a sac,an extended surrounding holder and an inclosing barrel separated from said holder to leave a non-conducting air-space.

7. A fountain-pen containing a sac, a surrounding holder terminating short of the closed end of said sac and permitting free movement of said sac within said holder, and an outer barrel.

8. A fountain-pen containing a sac, an extended surrounding holder terminating short of the closed end of said sac and permitting free movement of said sac Within said holder, and an outer removable barrel.

9. A fountain-pen containing a feed-section sac,an extended surrounding holder terminating short of the closed end of said sac, and an outer removable barrel, the said sac, holder and barrel being respectively supported at or adjacent the lower feed-section of the pen.

l0. In a fou ntain-pen, a tubular barrel open at one end, a detachable feed-section to close the open end of the barrel and having a permanently-attached elastic ink-reservoir, the latter being inclosed and protected by the barrel when the feed-section is in place therein, and a long, relatively inelastic tube mounted on, and extended rearwardly beyond the inner end of the feed-section, and detachably connected thereto, surrounding the reservoir and constituting a long and firm handpiece IOO IIO

IIE'

for the feed-section when the latter is removed HARRY W. STONE.

Witnesses:

WM. G. FRAZER, B. T. BAILEY. 

